Date: Tue, 16 Feb 2010 14:53:40 -0500 From: Joshua Boyd <boydjd@jbip.net> To: "Peter C. Lai" <peter@simons-rock.edu> Cc: freebsd-stable@freebsd.org Subject: Re: raidz/2 stripe widths Message-ID: <33c6b0bc1002161153u7b341868o573e6c0080a6e316@mail.gmail.com> In-Reply-To: <20100216194707.GQ4648@cesium.hyperfine.info> References: <20100216194707.GQ4648@cesium.hyperfine.info>
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http://blogs.sun.com/ahl/entry/double_parity_raid_z Looks like raidz2 is recommended for better protection against failures than 2 stripes. On Tue, Feb 16, 2010 at 2:47 PM, Peter C. Lai <peter@simons-rock.edu> wrote: > Which one might be "better" on pool that will consist of 6 disks: > > 6x raidz2 > > or > > 2 stripes of 3 disks in raidz? > > It should provide slightly less reliability (still allows for 2 disks to be > off the array at a time) but the latter should improve reads since a given > read only has to touch 3 spindles at a time instead of 5? > -- > =========================================================== > Peter C. Lai | Bard College at Simon's Rock > Systems Administrator | 84 Alford Rd. > Information Technology Svcs. | Gt. Barrington, MA 01230 USA > peter AT simons-rock.edu | (413) 528-7428 > =========================================================== > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > -- Joshua Boyd JBipNet E-mail: boydjd@jbip.net http://www.jbip.net
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